JPS5837376B2 - Aluminum alloy for fins - Google Patents
Aluminum alloy for finsInfo
- Publication number
- JPS5837376B2 JPS5837376B2 JP55047221A JP4722180A JPS5837376B2 JP S5837376 B2 JPS5837376 B2 JP S5837376B2 JP 55047221 A JP55047221 A JP 55047221A JP 4722180 A JP4722180 A JP 4722180A JP S5837376 B2 JPS5837376 B2 JP S5837376B2
- Authority
- JP
- Japan
- Prior art keywords
- fins
- alloy
- aluminum alloy
- less
- brazing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Description
【発明の詳細な説明】
この発明（ｊフイン用アルミニウム合金に関し、詳しく
は耐垂下性とろう付け性のすぐれたフィン用アルミニウ
ム合金に関する。DETAILED DESCRIPTION OF THE INVENTION This invention relates to an aluminum alloy for j-fins, and more specifically to an aluminum alloy for fins with excellent droop resistance and brazing properties.
最近フィン材の薄肉化に伴い、熱交換器をろう付け加熱
する際自重や治具の重さによって座屈しない、いわゆる
耐垂下性のすぐれたフィン用アルミニウム合金が要求さ
れている。Recently, as fin materials have become thinner, there has been a demand for aluminum alloys for fins that do not buckle due to their own weight or the weight of jigs when brazing and heating heat exchangers, so-called excellent sagging resistance.
この発明は上記要求をみたすフィン用アルミニウム合金
を提供することを目的とし、その要旨とするところは、
Ｍｎ ０． ４〜１． ５％、Ｍｇを０３〜０．９％と
８１ を０．８％を越え１．６％以内の範囲で含み、
残部はＡＩと不純物とからなるフィン用アルミニウム合
金およひＭｇ０．３ 〜０．９％、Ｍｎ ０． ４ 〜
１． ５％とＳｉを０．８％を越え１．６％以内の範囲
で含み残部ＧＩＡＩと不純物とからなるフィン用アルミ
ニウム合金に存する。The purpose of this invention is to provide an aluminum alloy for fins that satisfies the above requirements, and its gist is as follows:
Mn 0. 4-1. 5%, Mg in the range of 03 to 0.9% and 81 in the range of more than 0.8% and less than 1.6%,
The remainder is an aluminum alloy for fins consisting of AI and impurities, Mg0.3 to 0.9%, Mn 0. 4 ~
1. The aluminum alloy for fins includes Si in a range of more than 0.8% and less than 1.6%, and the balance is GIAI and impurities.
合金成分の意義および限定理由 Ｍｎ：強度向上に寄与する。Significance of alloy components and reasons for limitations Mn: Contributes to improving strength.
０．４％より少ないとその効果が小さく、１．５％をこ
えるとＡＡ一Ｍｎ系の巨大化合物が形成され正延加工性
を阻害する。If it is less than 0.4%, the effect will be small, and if it exceeds 1.5%, a giant AA-Mn compound will be formed, which will inhibit the normal rolling workability.
Ｍｇ：強度向上に寄与する。Mg: Contributes to improving strength.
０．３％より少ないとその効果が小さく、０．９％をこ
えるとろう付けの際溶融ろうが粒界に沿って拡散しやす
くなり、ろう付け不良が生じやすくなる。If it is less than 0.3%, the effect will be small, and if it exceeds 0.9%, the molten solder will tend to diffuse along the grain boundaries during brazing, making brazing defects likely to occur.
Ｓｌ ：座屈強度を高める。Sl: Increases buckling strength.
０。８％以下であると効果が小さく、１．６％をこえる
と合金の融点が低下し、ろう付け性がわるくなる。If it is less than 0.8%, the effect will be small, and if it exceeds 1.6%, the melting point of the alloy will decrease and the brazing properties will deteriorate.
なおこの発明の合金はこれらの必須戊分以外に下記元素
を添加してもよい。In addition to these essential elements, the following elements may be added to the alloy of the present invention.
Ｃｒ Ｏ．０ ３〜０．２ ５％：強度を高める。CrO. 0 3 to 0.2 5%: Increases strength.
Ｚｒ０．０５〜０．２５％：合金の結晶粒を微細化して
強度を高める。Zr0.05-0.25%: Refines the crystal grains of the alloy to increase strength.
ｖｏ．ｏｉ〜０．１％：合金の結晶粒を微細化して強度
を高める。vo. oi~0.1%: Refines the crystal grains of the alloy to increase strength.
Ｔｉ０．０５〜０３５％：軟化温度を高める。Ti0.05-035%: Increases the softening temperature.
Ｆｅ：不純物程度、例えば１．０％以下の含有は許容し
てもろう付け性ｌこ支障はない。Fe: Even if the content of Fe is an impurity, for example, 1.0% or less, there is no problem with brazing properties.
以下この発明の実施例について述べる。Examples of the present invention will be described below.
第１表に示す組成の合金を常法に従って熱間匡延およひ
冷間圧延して０．１６ｍｍ厚さの板材とした。An alloy having the composition shown in Table 1 was hot rolled and cold rolled according to a conventional method to obtain a plate material having a thickness of 0.16 mm.
この板材を幅２２關×長さ７０ｍｍの短柵状に切り、７
０間長さのうち３０ｍｍを固定して残り４０ｍｍを自由
にし空気炉中で６００℃×３分およひ６００’ＣＸＩＯ
分加熱後自由端の垂下量を測定した。Cut this board into a short fence shape with a width of 22 mm and a length of 70 mm.
Fix 30mm of the length, leave the remaining 40mm free, and heat in an air oven at 600°C for 3 minutes and 600'CXIO.
After heating for 30 minutes, the amount of drooping of the free end was measured.
その結果を第２表に示す。The results are shown in Table 2.
この発明の合金はすぐれた耐垂下性を示した。The alloy of this invention exhibited excellent sag resistance.
前記第１表に示す組成の０．１６ｍｍ厚板材をコルゲー
ト成形加工したフィン材と、Ａ．Ａ３００３合金を心材
とじＡＡ４０４３合金を皮材とするプレージングシ一ト
からつくられた管とを組合せて熱交換器モデルをつくり
、５６０°ＣＸ８ｈｒ予熱した後、６１０゜ＣＸ１０７
７１２７１の加熱条件で空気炉中でフラツクスろう付け
接合したところ、発明合金をフィン材として用いたもの
ではフィン材とろう材（皮材）との接合部に充分なα相
（初晶Ｓｉ） とＳｉとの共晶が存在する満足な継手
が得られたが、比較合金をフィン材として用いたもので
はフィン材とろう材（皮材）との接合部において前記共
晶がかなりの部分失なわれて空隙が形成し接合不良が生
じた。A fin material obtained by corrugating a 0.16 mm thick plate material having the composition shown in Table 1 above, and A. A heat exchanger model was made by combining a tube made from a core made of A3003 alloy and a plating sheet made of AA4043 alloy, and after preheating at 560°C for 8 hours, it was heated to 610°CX107.
When flux brazing was performed in an air furnace under the heating conditions of No. 71271, when the invention alloy was used as the fin material, sufficient α phase (primary crystal Si) and A satisfactory joint in which the eutectic with Si existed was obtained, but in the case where the comparative alloy was used as the fin material, a considerable portion of the eutectic was lost at the joint between the fin material and the filler metal (skin material). This caused voids to form, resulting in poor bonding.
次に熱間モ延および冷間匡延によって１．２間厚さの板
材をつくり、ＪＩＳ５号試験片に成形した後、空気炉中
で６００℃Ｘｌｈｒ加熱した後の引張り性能を第３表に
示す。Next, a plate with a thickness of 1.2 mm was made by hot rolling and cold rolling, and after being formed into a JIS No. 5 test piece, the tensile properties after heating at 600℃Xlhr in an air furnace are shown in Table 3. show.
この結果でも明らかなように、発明合金はすぐれた引張
り強度を有している。As is clear from these results, the invention alloy has excellent tensile strength.
Claims (1)
え１．６％以内の範囲で含み、残部はＡＩ と不純物と
からなるフィン用アルミニウム合金。 ２Ｍｇ０．３〜Ｏ、９％、Ｍｎ ０． ４ 〜１． ５
％とＳｉを０．８％を越え１．６％以内の範囲で含み、
残部はＡＩと不純物とからなるフィン用アルミニウム合
金。[Claims] An aluminum alloy for fins containing I Mg in a range of 0.3 to 0.9% and Si in a range of more than 0.8% and less than 1.6%, with the balance being AI and impurities. 2Mg0.3~O, 9%, Mn 0. 4 ~1. 5
% and Si in the range of more than 0.8% and less than 1.6%,
The remainder is an aluminum alloy for fins consisting of AI and impurities.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP55047221A JPS5837376B2 (en) | 1980-04-10 | 1980-04-10 | Aluminum alloy for fins |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP55047221A JPS5837376B2 (en) | 1980-04-10 | 1980-04-10 | Aluminum alloy for fins |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS56142846A JPS56142846A (en) | 1981-11-07 |
| JPS5837376B2 true JPS5837376B2 (en) | 1983-08-16 |
Family
ID=12769120
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP55047221A Expired JPS5837376B2 (en) | 1980-04-10 | 1980-04-10 | Aluminum alloy for fins |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5837376B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2690055B2 (en) * | 1988-07-06 | 1997-12-10 | 三菱アルミニウム株式会社 | High strength Al alloy for pipe fittings of Al heat exchanger |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS49127809A (en) * | 1973-04-13 | 1974-12-06 | ||
| JPS54121213A (en) * | 1978-03-15 | 1979-09-20 | Sumitomo Light Metal Ind | Aluminium alloy for core material of brazing sheet |
-
1980
- 1980-04-10 JP JP55047221A patent/JPS5837376B2/en not_active Expired
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS49127809A (en) * | 1973-04-13 | 1974-12-06 | ||
| JPS54121213A (en) * | 1978-03-15 | 1979-09-20 | Sumitomo Light Metal Ind | Aluminium alloy for core material of brazing sheet |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS56142846A (en) | 1981-11-07 |
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